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'Sasser' Worm Targets
Microsoft Windows Flaw

NEW YORK -- A new computer worm tied up hundreds of thousands of machines world-wide, making it the latest outbreak to take advantage of a flaw in Microsoft Corp.'s Windows operating systems.

The worm, dubbed "Sasser" by antivirus companies, currently has four variants and has been slowing down infected consumer and corporate computers world-wide and the networks on which they run. The flaw, which affects machines running various versions of Microsoft's operating system, including Windows XP, Windows Server and Windows...